A Solid Manganese-Steel Self-Guarded Frog is constructed with guides or flanges above it´s running surface. These flanges contact the tread rims of the wheels and safely guide the wheel flanges past the point of the frog. This type of frog is used for yard tracks and main-line tracks, where the speed does not exceed 30mph.
|641- 1″ Side Walls|
|No. 4-10 frogs|